<p>This paper investigated the differences in the seismic performance of steel reinforced recycled aggregate concrete (SRRC) columns under strong-axis and weak-axis loadings through a comprehensive parametric study. The results indicate that: (1) The developed software can automatically and error-freely generate code for simulating the seismic performance of SRRC columns in OpenSees within seconds. (2) Under the weak-axis loading, the influence of the strength of recycled aggregate concrete (RAC), the shear-span ratio and the recycled coarse aggregate (RCA) replacement rate on the bearing capacity is more significant than that under the strong-axis loading. Increasing H-steel strength enhances strong-axis capacity but barely affects weak-axis capacity. Higher steel strength, steel ratio, shear-span ratio and RCA replacement rate amplify the bidirectional capacity difference. (3) The ductility under strong-axis loading is superior to that under weak-axis loading. Higher shaped steel strength reduces strong-axis ductility but leaves weak-axis ductility nearly unchanged, narrowing their ductility difference. A higher steel ratio increases strong-axis ductility but barely changes weak-axis ductility, widening their ductility difference. Higher shear-span and axial compression ratios reduce ductility in both directions, while a higher RCA replacement rate negligibly affects strong-axis ductility, but reduces weak-axis ductility, widening the difference. (4) The weak-to-strong-axis bearing capacity ratio was approximately 50%, negatively correlated with steel ratio, H-shaped steel yield strength, shear-span ratio, and RCA replacement rate, positively correlated with RAC strength, and first decreasing and then increasing with axial compression ratio. Additionally, an empirical formula for this ratio was proposed.</p>